Normal for this time of year, in India you get maybe a month of clear blue perfect CAVOK days in the north and north east, special VFR is the norm and thats only available to flight schools and helicopters. You might see viz around 3000 m often but 5km or more isnt so often. Jan and feb are the worse months in Delhi, but this viz is pretty much the whole top centre portion of India extending over to Kolkata and down into say Nagpur. South India and over in the west see clear skies a lot, in the south its especially nice and normal with lots of days of unlimited viz. Sadly in Delhi and Kolkata way too much pollution from industry, people and old diesel vehicles sadly in India.